CoW$_{2}$B$_{2}$ Structure: A2BC2_oI10_71_e_c_g-001
| Prototype | B$_{2}$CoW$_{2}$ |
| AFLOW prototype label | A2BC2_oI10_71_e_c_g-001 |
| ICSD | 16776 |
| CCDC | 1597325 |
| Pearson symbol | oI10 |
| Space group number | 71 |
| Space group symbol | $Immm$ |
| AFLOW prototype command |
aflow --proto=A2BC2_oI10_71_e_c_g-001
--params=$a, \allowbreak b/a, \allowbreak c/a, \allowbreak x_{2}, \allowbreak y_{3}$ |
Other compounds with this structure
Ca$_{2}$AgPd$_{2}$, Ca$_{2}$CdPd$_{2}$, Ca$_{2}$CdPt$_{2}$, Ca$_{2}$GaCu$_{2}$, Ca$_{2}$MgPd$_{2}$, Ca$_{2}$MgPt$_{2}$, Ce$_{2}$SnNi$_{2}$, Ce$_{2}$ZnNi$_{2}$, Co$_{2}$AlGd$_{2}$, Dy$_{2}$AlCo$_{2}$, Dy$_{2}$AlNi$_{2}$, Er$_{2}$AlCo$_{2}$, Er$_{2}$AlNi$_{2}$, Er$_{2}$AlSi$_{2}$, Er$_{2}$GaNi$_{2}$, Gd$_{2}$AlCo$_{2}$, Gd$_{2}$AlNi$_{2}$, Ho$_{2}$AlCo$_{2}$, Ho$_{2}$AlNi$_{2}$, Ho$_{2}$AlSi$_{2}$, Ho$_{2}$GaNi$_{2}$, La$_{2}$AlNi$_{2}$, La$_{2}$ZnNi$_{2}$, Lu$_{2}$AlNi$_{2}$, Lu$_{2}$AlSi$_{2}$, Lu$_{2}$GaNi$_{2}$, Mo$_{2}$CoB$_{2}$, Mo$_{2}$NiB$_{2}$, Nd$_{2}$AlCo$_{2}$, Nd$_{2}$AlNi$_{2}$, Ni$_{2}$ZnTb$_{2}$, Pr$_{2}$AlCo$_{2}$, Pr$_{2}$AlNi$_{2}$, Pr$_{2}$SnNi$_{2}$, Sm$_{2}$SnNi$_{2}$, Sr$_{2}$CdPt$_{2}$, Tb$_{2}$AlCo$_{2}$, Tb$_{2}$AlNi$_{2}$, Tb$_{2}$GaCo$_{2}$, Tb$_{2}$GaNi$_{2}$, Tm$_{2}$AlCo$_{2}$, Tm$_{2}$AlNi$_{2}$, Tm$_{2}$AlSi$_{2}$, Tm$_{2}$GaNi$_{2}$, W$_{2}$FeB$_{2}$, W$_{2}$NiB$_{2}$, Y$_{2}$AlNi$_{2}$, Y$_{2}$AlSi$_{2}$, Y$_{2}$SnNi$_{2}$
- The AFLOW prototype label protocol rotates the crystal by 90$^\circ$ about the z-axis, interchanging the a and b lattice constants. It also shifts the origin, moving the cobalt atom from the (2a) site to the (2c) site.
- We apologize to (Zhang, 2025). At the time this entry was posted their full publication information was not available. We hope that the DOI is correct.
\[ \begin{array}{ccc}
\mathbf{a_{1}}&=&- \frac{1}{2}a \,\mathbf{\hat{x}}+\frac{1}{2}b \,\mathbf{\hat{y}}+\frac{1}{2}c \,\mathbf{\hat{z}}\\\mathbf{a_{2}}&=&\frac{1}{2}a \,\mathbf{\hat{x}}- \frac{1}{2}b \,\mathbf{\hat{y}}+\frac{1}{2}c \,\mathbf{\hat{z}}\\\mathbf{a_{3}}&=&\frac{1}{2}a \,\mathbf{\hat{x}}+\frac{1}{2}b \,\mathbf{\hat{y}}- \frac{1}{2}c \,\mathbf{\hat{z}}
\end{array}\]
Basis vectors
| Lattice coordinates | Cartesian coordinates | Wyckoff position | Atom type | |||
|---|---|---|---|---|---|---|
| $\mathbf{B_{1}}$ | = | $\frac{1}{2} \, \mathbf{a}_{1}+\frac{1}{2} \, \mathbf{a}_{2}$ | = | $\frac{1}{2}c \,\mathbf{\hat{z}}$ | (2c) | Co I |
| $\mathbf{B_{2}}$ | = | $x_{2} \, \mathbf{a}_{2}+x_{2} \, \mathbf{a}_{3}$ | = | $a x_{2} \,\mathbf{\hat{x}}$ | (4e) | B I |
| $\mathbf{B_{3}}$ | = | $- x_{2} \, \mathbf{a}_{2}- x_{2} \, \mathbf{a}_{3}$ | = | $- a x_{2} \,\mathbf{\hat{x}}$ | (4e) | B I |
| $\mathbf{B_{4}}$ | = | $y_{3} \, \mathbf{a}_{1}+y_{3} \, \mathbf{a}_{3}$ | = | $b y_{3} \,\mathbf{\hat{y}}$ | (4g) | W I |
| $\mathbf{B_{5}}$ | = | $- y_{3} \, \mathbf{a}_{1}- y_{3} \, \mathbf{a}_{3}$ | = | $- b y_{3} \,\mathbf{\hat{y}}$ | (4g) | W I |
References
- W. Rieger, H. Nowotny, and F. Benesovsky, Die Kristallstruktur von W$_{2}$CoB$_{2}$ und isotypen Phasen, Monatsh. Chem. 97, 378–382 (1966), doi:10.1007/BF00905254.
Found in
- Z. Zhang, E. H. Gamage, G. Amobi, S. Pradhan, A. Kutepov, K. D. Belashchenko, Y. Sun, K. Kovnir, and V. Antropov, Discovery and Synthesis of a Family of Boride Altermagnets, J. Am. Chem. Soc. XXX, XXX (2025), doi:10.1021/jacs.5c07874.
First cited in
- N. Anderson, M. J. Mehl, H. Eckert, S. Divilov, X. Campilongo, S. Curtarolo, The AFLOW Library of Crystallographic Prototypes: Part 5. Submitted to Computational Materials Science (2026).
Geometry files
Prototype Generator
aflow --proto=A2BC2_oI10_71_e_c_g --params=$a,b/a,c/a,x_{2},y_{3}$